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Robot routing on-line control method oriented to dynamic environments

A control method and dynamic environment technology, applied in the field of machine learning, can solve the problems of re-executing other actions, low efficiency of Macro-Q learning, and limited application environment of abstract actions, so as to improve efficiency and expand the application environment

Active Publication Date: 2016-08-17
海博(苏州)机器人科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

Due to the limitation of the definition of time abstraction, when the abstract action is adopted by the robot, it cannot execute other actions in the middle of the execution of the abstract action. This definition greatly limits the application environment of the abstract action, especially the environment for the robot to perform tasks. Macro-Q learning becomes inefficient when the environment is dynamically changing

Method used

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  • Robot routing on-line control method oriented to dynamic environments
  • Robot routing on-line control method oriented to dynamic environments
  • Robot routing on-line control method oriented to dynamic environments

Examples

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Embodiment

[0045] Example: refer to figure 1 As shown, an online control method for robot path-finding that can interrupt abstract actions in a dynamic environment, specifically includes the following steps:

[0046] 1) Environment and parameter initialization: set the operating environment of the robot, the reward value for the robot to reach the goal, the step size parameter for updating the value, and the discount factor parameter. The operating environment includes the boundary of the environment, the starting position of the task, the end position, The position of fixed obstacles in the environment, and each position is regarded as a state;

[0047] 2) Design a pre-given set of abstract actions, add the set of abstract actions to the optional actions of the robot, and initialize all state-action evaluation values ​​at the same time , where each abstract action in the abstract action set consists of the following three parts: initial state set, internal strategy and termination con...

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Abstract

The invention discloses a robot routing on-line control method oriented to dynamic environments. The method includes the steps that 1, environment and parameter initialization is carried out; 2, a basic motion set of a robot and an abstract motion set form selectable motions of the robot, and the assessed values of all states-motions are initialized, wherein each abstract motion in the abstract motion set is an interruptable abstract motion; 3, random obstacles are generated; 4, a motion is selected through a motion selection module and an updating module, and the assessed value of the corresponding state-motion is updated; 5, if the selected motion reaches an endpoint state, the step 6 is executed, and otherwise, the step 4 is executed; 6, if conditions are met, the task is ended, and otherwise, the step 3 is executed. According to the method, by introducing an interrupt mechanism, the robot can be controlled online to apply abstract motions to uncertain dynamic environments and adapt to dynamic environments flexibly, then the robot can complete tasks in complex dynamic environments, and thus the application environments can be expanded while efficiency is improved.

Description

technical field [0001] The invention relates to an on-line control method for robot path-finding, which belongs to the field of machine learning, and in particular to an on-line control method for robot path-finding that is oriented to a dynamic environment and can interrupt abstract actions. Background technique [0002] With the continuous expansion of the application field of robots, the tasks faced by robots are becoming more and more complex. Although many algorithms can pre-design and program the possible behaviors of robots, there are various uncertainties when faced with complex tasks and the environment that the robot will face cannot be fully detected and will change dynamically. Designers are often unable to make effective predictions about the dynamically changing environment in advance, so that they cannot reasonably control the actions and behaviors of the robot according to the actual situation of the environment. Therefore, it is particularly important to de...

Claims

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Application Information

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IPC IPC(8): G05D1/12
CPCG05D1/12
Inventor 朱斐伏玉琛刘全陈冬火黃蔚
Owner 海博(苏州)机器人科技有限公司
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